Improvement in knitting-machines



J. HOLLEN.

KNITTINGMAGHINB.

Patented July 19, 1870.

.tIlBIIl I with JOSEPH. HOLLEN, or nos Ton a, PENNSYLVANIA.

Letters Patent N0. 105,454,dctell'Juiy 1c, 1870.

IMPROVEMENT IN KNITTING-MACHINES.

The Schedule referred to in these Letters Patent and making part of thesame I, JOSEPH HOLLEN,l0fQFoSt0rlH/, in the county of Blair and State ofPennsylvania-have invented certain Improvements in RotaryKnitting-Machines, of which the following is a specification.

Nature 'a-nzZObjects of the Iiwent'ion.

My improvements relate to'that class of rotary knitting-machinesi'nwhich the needles are rigidly fixedparallel with each other and withthe axis of the rotary cylinder around which they are secured; and

The first part of my invention relates to the construction of the saidneedles. Each needle is made with a groove along in one side-from theouter end of the needle backward, so thatthc pointed arm ofthe-stitchlifter will the more certainly enter 'the' stitch on theneedle; and the same side beveled to the outer edge.

of the hooked end of the needle, so as to cause the said arm of thelifter, on its return forward with the stitch, to slide down with morecertainty on the same side of theneedle; and also with a shoulder,ofiset, or

projection, on its under-side edge, so as to'more certainly keep thestitch fromfbeing drawn backward or inward too far, oat-he shank of theneedle, by the backward or inward movement of .the said lifter.

The second part/of myinve'ntion relates to the construction of thestitch-lifter with a spring tongue, which will allow the stitchwhichis'b'eing entered by the arm of the lifter to press the springtongue upward and slip along between it and thearm of the lifter and t0the bend or angle ofthe latter, as the said lifter passes- Onward farenough to let the eye of the carrier pass across'between it and thepoint of the needle, and so, also, that, when the lifter returns-withthe stitch and passes downward alongside oi the hooked end of theneedle, the-spring tonguewill rise and let the arm of the stitch-lifterwithdraw from the said stitch, and immediately afterward close downagain upon a the arm of the lifter, which then enters the stitch 0n thenext'needle the object of this part of my invention bcing-to dispensewith the old notch heretofore used in the lifter, and afl'ord a morercliable'a-nd etL fective device forthe same purpose. I

The tl. 'rdpart of my invent-ion relates to the construction of thelever which gives the necessary vi bratory motions to thethread-carrier, and consists in making its rear end in theforin of arhombus or diemond-sha'ped,'so 'as' to produce two opposite 'cams,whic'hwill causethe said end of the lever to be moved to the right andleft.alternately'bysimple studs or pins fixed in the reversibledriving-cylinder of the machine, and thus produce the required vibratorymotions in the thread-carrier, in a more simple and accurate manner.

Description of the Acconq'rany'ingDrawings. Figure 1 is aside view ofone of the needles.

Figure 2 is a View of the upper edge of the same.

Figure 3 is a sectional side elevation, of theJuppcr part of 'themachine, having the front side of the frame thereof removed, for thepurpose of showing my in-:

vention embodied.

' Figure 4 is a detached 'portion of some of the devices shownin fig. 3,but in diiferent relative positions.

General Description.

The needles A' are each made out of a flat strip of metal, and fixededgewise or radially around on their carrying cylinder 13., parallelwith each other and with the axis of the said cylinder.

The hooked end a is sharpened around its outer edge or beveled onioneside, so as to better allow the stitch-lifter O to pass downward on thatside as it moves forward on its return with the-lifted stitch; and inthe same side the shank of the needle has a V groove, 'a,-'which thepointed end of the arm dot the lifter G traverses, and thus is morecertainly caused,

to enter the stitch on the needle as the said lifter is moved backwardor inward for the purpose.

I On the inner edge of the needle there is an offset or shoulder, a,whichprevents theistitch' on the needle from being drawn back too far bythe lifter O as the latter moves backward orinward to let the eye (1' ofthe thread-carrier D pass between it and'the point a of the needle-A. vr

' The stitch-lifter G has a pointed inwardprojecting arm, 0, intheiusual vmanner, but without the notch heretofore required to draw thestitch off of the necdle; and, instea d of said notc h,lit has acurvedtongue,

0'', which is caused, by itsspringy arm 0', to press'suf- 'retlirns'forward, (sec fig. v4,) carrying the stitch held thereon (not shownintlie figure) by the spring tongue I 0" until, in passing downwardinfront ofthe needle, the stitch requires to be released by'the withdrawalof the arm 0. This release is permitted by the rising of the tongue 0,which is efi'ected by. means of a stud, e, on the driving-cylinder E,which elevates an arm,

- f, which is fixed to a shaft, f', an'd to which latter another arm, f,is fixed, and this latter arm is thereby caused to press downward uponthe lifter O and the.

spring arm 0' of the tongue being fixed to the latter and presseddownward upon a stop, g, by the arm f" pressing downward upon thelifterO, the tongue 0" is raised sufliciently to let the arm 0' of thelifter C be freely withdrawn from .the stitch and the stud e now passingfurther around, lets the arm f return, and, consequently, the tongue 0"again closes down upon the arm 0, and the latter is ready to enter thestitch in the next succeeding needle.

The necessary vibratory motions are given to the thread-carrier D bygiving to the usual vibrating lever H a diamond-shaped end, h, a planview of which,

applied to the driving cylinder E, is shown in Figure 5. It will be seenthat as the cylinderE rotates in either direction, the series of pins orstuds e", arranged for the purpose, will move the head h right and leftalternately, and, consequently, produce the vibratory motions requiredin the thread-carrier D with which it islconnected in the usual manner.

Claims.

I claim as my invention Witnesses:

J OHN- CAMPBELL, JAMES B. CAMPBELL.

